Abstract: A selector valve arrangement (4 or 6) primarily for a shower bath unit comprises a radially directed and angularly movable flow directing ported valve member (40 or 60) within a valve chamber (41 or 61) having ports (45-48 or 63-65) with which porting (44 or 66) of the valve member (40 or 60) selectively communicates on appropriate rotational positioning of the valve member (40 or 60). The valve member (40 or 60) receives fluid (usually water) for distribution through a selected port or ports (45-48 or 63-65) from an on/off fluid flow control inlet valve (43 or 30). In one arrangement a spindle (42) for rotating the valve member (40) is also axially operable and releasably lockable (49, 50) for operating the on/off flow valve (43).